The lump is probably not a 'hive', ie. not an allergic reaction. Lumps
post injection are not that uncommon in cats - it is a reaction to the
irritant of the immunization, not a sign of allergy.
Cathy
On Tuesday, June 15, 2004, at 09:25 PM, Donna wrote:

Tigger moans for a few days after his shots, but he is a whiner anyways
:)

What does bother me is the lump that appears there for a day. Seems
like
he is reacting to the shots, a hive type lump.